Quote Originally Posted by sponge View Post
Are we back on track now?

I've spent my pocket money this month on AMB's γ1 (Gamma 1) portable DAC kit (awaiting parts as we speak) - So here's a couple of suggestions for you guys to try:

The AD8620 - I know it's a FET input op-amp, but I have used it in the past and found it difficult to beat if you prefer a more forward sound. Quite expensive at the moment though and only available in SOIC. But these guys do a pre-mounted chip: http://cimarrontechnology.com/pre-mo...0-970601s.aspx and their shipping is very reasonable.

The AD826 - I have never used this op-amp, but it gets good reviews on the forums. May be a bit of a handfull to control like the THS4032, but the spec sheet is very impressive. Price is reasonable at about 5GBP, but it does come in 8pin DIP.


OK, I am looking to Stan or Leo for their advice next - I have been pondering whether it would be worthwhile upgrading the electrolytic capacitors on the HA board of the TC-7520 to something like Rubycon ZA or Nichicon "MUSE". Is it worth the effort? What are the likely sonic gains, if any? Your help will be appreciated.


Ken
AD826, not sure if this one will behave in the 7520, if it does it should be very good.

AD8620 has its fans, its similar to AD8066 but behaves more in a wider range of circuits, some find it lacks bottom end
Last time I used one of these adding a CRD from output to supply pin with worse PSRR greatly improved it

I've tried dozens of op-amps, not in this dac though